Polarization-dependent vibrational shifts on dielectric substrates
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Date
2020
Volume
22
Issue
30
Journal
Physical chemistry, chemical physics : PCCP
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Book Title
Publisher
Cambridge : RSC Publ.
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Abstract
The interaction of light with matter at surfaces of dielectrics strongly depends on polarization. Here, we present the first infrared spectroscopic evidence for significant polarization effects in the spectroscopic detection of adsorbate vibrational frequencies. In addition to much larger peak intensities for p-polarized light relative to s-polarization, a small but distinct blue shift was identified for CO adsorbed at the surfaces of two prototype dielectric substrates, CeO2(111) and CaCO3(10.4). A simulation using a layer model yields very good agreement with experiment.
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Yang, C., Wang, W., Nefedov, A., Wang, Y., Mayerhöfer, T. G., & Wo¨ll, C. (2020). Polarization-dependent vibrational shifts on dielectric substrates (Cambridge : RSC Publ.). Cambridge : RSC Publ. https://doi.org//10.1039/d0cp02399j
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CC BY-NC 3.0 Unported